Attaching means for fastening members.



I. s. CARR. ATTACHING MEANS FOR FASTENING MEMBERS. APPLICATION FILED31110, 1908.

959,308. I rammedma 24,1910.

UNITED sTArns PATENT ()F1%ICE.

man s. CARR, or nnooxmnn, messncnusnr'rs, ASSIGNOB ro cane msrnnnnCOMPANY, OF BOSTON, MASSACHUSETTS,

a conronar on or name.

AMAcnIne mnnns non rnsrnivme arianas.

Specification of Letters Patent.

rammed May .2 1910.

implicat on filed January .1308.- i 1 No 410, 25-

To all whom it may concern:

Be it known that I, FRED S. CARR, of

'Brookline, in the county of Norfolk and State of Massachusetts, haveinvented certain new and useful Improvements in Attaching Means forFastening Members, of which the following is a specification. I Thisinvention relates to fastening members which are adapted to be appliedto flexible material, such as cloth, thin leather, etc.

The invention is applicable to fastening members of various kinds, suchas a socket member adapted to engage a complemental stud member or aneyelet adapted to engage a cord or lacing.

The invention has for its object to pro-" vide improved means forclamping a fastening member to a piece of cloth or other flexiblematerial, in such manner that the said flexible material will be firmlyengaged at a number of points, and prevented from being pulled outwardlyfrom its proper enga gement with the fastening member.

he invention consists in a fastening member having a sheet metalclamping part adapted to bear on one side of the article to which themember is to be attached, and provided with a series of prongs, whichare integral with the said clamping art, and project therefrom, and areadapte to enetrate and pass through the-portion 0 the article to whichthe member is applied, and a complemental part adapted to act as ananvil on the ends of the said prongs to turn or clench the same, andcause their firm engagement with the flexible sheet material.

The invention consists in the improvements which I will now proceed todescribe and claim. (ifthe accompanying drawings, forming a part of thisspecification, Figure l represents a perspective view of one of theparts of a fastening member embodying my invention. Fig. '2 representsan enlarged perspective sectional view of the part shown in Fig". 1, anda complemental part ready for engagement therewith. .Fig. 3 represents aFig. v5. Fig. 7 represents a sectional view of the form of fastenershown in Figs. 5 and 6, the fastener being attached to a piece ofmaterial.

The same reference characters indicate the same parts in all thefigures.

In the drawings a represents the main or body portion of a grometconstructed in accordance with my invention, said portion comprising anannular plate 2, the inner edge of which is bent outwardly to form asetting flange 3. 4 4 represent prongs,-

which are struck up from the portion 2 and entirely within the marginthereof, and are integral therewith, the prongs standing inside themargin of said portion 2 and substantially at right angles with the"plane thereof, and being formed to penetratethe sheet of material 5with which the device is to be engaged. 6 represents a'complemental partor member, wh1ch has the same general form as the ortion 2, and isadapted to surround the 5 under side a series of recesses 7, coincidingin position with the proigs 4, the said-recesses being concave andconstituting anvils.

In connecting the parts described, the body portion a is placed againstone side of the sheet 5, and until the prongs 4 penetrate the sheet, anopening being formed in the sheet to receive the flange 3. The part 6 isthen pressed against the points of the prongs 4, the latterbearing'against the recesses7, pressure being so exerted that the prongsareclenched so that their points turncircumferentially and reenter thesheet 5, in a direction toward the plate 2, as indicated in Fig. 4, ow-

pressed against the latteringto the fact that the prongs first stand inplanes radial to the plate. The setting flange 3 is then rolled overupon the inner edge of the part 6, as shown in Fig. 3, the

parts being thus firmly and securely connected. In Figs. 5, 6, and -7, Ishow my invention embodied in a one piece eyelet or gromet, in which thesetting flange 30 corresponding to the flan e 3 shown in Figs. 1, 2 and3, is consideraby higher in proportion to the spurs 4. When the settingflange is upset or turned over, as shown in Fig. 7, it presses againstthe points of thespurs, the latter over, and causes them to reenter thematerial.

My invention is characterized by slender and bends elon ated spurs,which are integral with a meta lie fastening member, and first enetratethe fabric to which the member is applied, and are then bent backandreenter the fabric thus passing twice through the fabric, and forming ametallic seam.

Practicall thevonly difference between the two forms shown is that whilein Figs. 5, 6

and -7 the outer or anvil portion is integral arranged bases locatedentirely within the with the base or body portion, in Figs. 1, 2 and 3the upper or anvil portion consists mainly of a separate iece which isheld inplace by rollin the ange 3 over upon the inner edge of t e part6. In each form the pron s are struck up from the base portion 2 an areintegral therewith and the bases of the prongs are radial so that whenthey are clenched down the turn in a circumferential direction. Thereore the entire device can be made with an exceedingly narrow base andanvil portion. and yet have no rough pprtions or tips on the pron thatwould liable to catch upon any fa ric coming in contact therewith.

I claim: I a A fastening member com rising a circular base or bodyportion rovi ed with an opening and'an u right ange surroundin saidopening, sai base or body portion eing a so provided with prongs havingradially margin of said base or body portion, and an upper or anvilportion against the underside 0 which the prongs are clenched and turnedbackward.

In testimony whereof I'have afiixed my signature, in presence of twowitnesses.

FRED S. CARR.

Witnesses C. F. BROWN, PETER W. Pnzznzrrr.

